Free shipping for the holidays through Dec. 31

MK, shown here, is a size 26 jeans, wearing a size 1
Subtle v-back feels like you're not wearing anything
Uber soft elastic band never rolls and won't dig
Sieve Thong in Black

Sieve Thong in Black

A little bit sheer. A little bit sultry. 100% comfortable. You can do better than basic black.
  • Subtly sheer Belgian honeycomb micromesh
  • Silky plush Japanese elastic waist band
  • Low rise cut lays smooth on hips
  • Invisible under most (dark) clothes
    • MK is 5'10", size 26 jeans, and wearing size 1
    • 0 = XS/S (jeans size: 24, 25, 26)
    • 1 = S/M (jeans size 26, 27, 28)
    • 2 = M/L (jeans size 28, 29, 30)
    • Fit is low rise
    • If you prefer a looser fit or higher rise you may consider sizing up

  • Questions? Talk to us: hello@negativeunderwear.com
Free domestic shipping on orders over $100; free domestic returns, always. 
Underwear bottoms must be unworn, with tags attached, to be eligible for merchandise credit. While we can’t offer refunds for underwear bottoms, we’re confident you’ll put your merchandise credit to good use! They never expire, and can be used for anything on our site.

Want more info about materials, care instructions or policies? FAQ's or hello@negativeunderwear.com.

    $28.00
    A little bit sheer. A little bit sultry. 100% comfortable. You can do better than basic black.
    • Subtly sheer Belgian honeycomb micromesh
    • Silky plush Japanese elastic waist band
    • Low rise cut lays smooth on hips
    • Invisible under most (dark) clothes
      • MK is 5'10", size 26 jeans, and wearing size 1
      • 0 = XS/S (jeans size: 24, 25, 26)
      • 1 = S/M (jeans size 26, 27, 28)
      • 2 = M/L (jeans size 28, 29, 30)
      • Fit is low rise
      • If you prefer a looser fit or higher rise you may consider sizing up

    • Questions? Talk to us: hello@negativeunderwear.com
    Free domestic shipping on orders over $100; free domestic returns, always. 
    Underwear bottoms must be unworn, with tags attached, to be eligible for merchandise credit. While we can’t offer refunds for underwear bottoms, we’re confident you’ll put your merchandise credit to good use! They never expire, and can be used for anything on our site.

    Want more info about materials, care instructions or policies? FAQ's or hello@negativeunderwear.com.

      “Negative Underwear was founded with three words in mind: minimal, considered, and uncomplicated. That's exactly what its bras are. “

      “Negative Underwear’s classic seamed bra is comfortable and simple but still sexy enough to wear on your next date.”

      “The result is four simple styles produced with premium-­quality cotton and nylon elastane sourced from Belgium and the U.S.”